February 27 » Second Boer War: Australian soldiers Harry "Breaker" Morant and Peter Handcock are executed in Pretoria after being convicted of war crimes.
March 6 » Real Madrid CF is founded.
March 7 » Second Boer War: Boers, led by Koos de la Rey, inflict the biggest defeat upon the British since the beginning of the war, at Tweebosch.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
August 22 » Cadillac Motor Company is founded.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of death March 23, 1903
The temperature on March 23, 1903 was between 8.5 °C and 20.0 °C and averaged 14.1 °C. There was 10.4 hours of sunshine (84%). Source: KNMI
February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
June 11 » A group of Serbian officers stormed the royal palace and assassinated King Alexander Obrenović and his wife, Queen Draga.
July 4 » The Philippine–American War is officially concluded.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
October 10 » The Women's Social and Political Union is founded in support of the enfranchisement of British women.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I99837.php : accessed February 7, 2026), "Jannes Doppenberg (1902-1903)".
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